Interesting but Confusing Things

You've heard or seen these before,

But how long did you think about them?

- The third hand on the watch is called the second hand.

- Why do we sing "Take me out to the ball game" when we are already there?

- If a word is misspelled in the dictionary, how would we ever know?

- A good vacuum really sucks.

- Why do we say something is out of whack? What is a whack?

- Why does "slow down" and "slow up" mean the same thing?

- Why does "fat chance" and "slim chance" mean the same thing?

- Why do "tug" boats push the barges?

- Why are they called "stands" when they are made for sitting?

- Why is it called "after dark" when it really is "after light"?

- Doesn't "expecting the unexpected" make the unexpected expected?

- Why are a "wise man" and a "wise guy" opposites?

- Why do "overlook" and "oversee" mean opposite things?